ETYM So called from the German electrician, German s. Ohm.
Unit of electrical resistance: resistance of circuit in which current of one ampere is produced by one volt.
Si unit (symbol w) of electrical resistance (the property of a substance that restricts the flow of electrons through it).
It was originally defined with reference to the resistance of a column of mercury, but is now taken as the resistance between two points when a potential difference of one volt between them produces a current of one ampere.
The unit of measure for electrical resistance. A resistance of 1 ohm will pass 1 ampere of current when a voltage of 1 volt is applied.
A unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere.